Tire or other valve.



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TIRE 0R OTHER VALVE.

(Application Blad Apr. 8, 1897.)

(No Model.)

Fla. l.

FIG. 7.

F IG. 8.

WITNESSES:

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UNITED STATES GEORGE n. E. sOHRADER,` or NEW YORK, N. Y.

'PATENT OFFICE.

`TIRE OR OTHERVALVE.

`SHPECIFICLA'JJION forming part of Letters Patent No. 685,649, datedOctober 29, A1901, Application filed April 8, 1897. Seria] No. 631.250.(No model.)

To all whom it may concern.-

Be it known that I, GEORGE H. F. SCHRA- DER, a citizen of the UnitedStates, residing in the city, county, and State of New York, haveinvented certain new and useful Improvements in Tire or other Valves, ofwhich the following is a specification.

This invention relates to pneumatic and other valves of the class knownas tirevalves, and aims to provide certain improvements therein.

Heretofore tire-valves have been constructed with a shell having aninternal valvechamber and seat, a valve proper within the chamber, and aspring for seating the valve proper. Imperforate plugs and disks havebeen used as the valve proper and have been t A one form oftirev'alvelxed to the cot of a pneumatic tire, the cot and tire beingshownV fragmentarily in section. Fig. 2 is a vertical axial sectionthereof, the parts being in a closed position. Fig. Bis an axial sectionof the valveshell, showing the internal parts in elevation and in theopen position. Figs. 4. and 5 are respectively cross-sections on thelines 4 4. and 5 5 of Fig. 2, and Fig. 6 is a cross-section on theline 66 of Fig. 3. Fig.` 7 is an axial section showing a modification. Fig. 8is a similar view showing another modification, andv Fig. 9 is alikeView showing the valves in Fig. 8 in the open position.

The valves shown are all ofthe style known as cOt-'valves;7 but myimprovements are equally applicable to any other construction of valve.

In-the drawings, A represents a tire; B, the y valve proper; G, thevalve-spring; i H, the deflater, and I the plug closing the inner end ofthe shell. These parts may be of any usual or suitable construction, theexample taken being chosen as a convenient construction of valve towhich my improvements are applicable. In this construction .the shell istubular andA has an outer screw threaded socketa, a contracted neck b,leading to the seat, a shoulder c in this neck, and a duct d through theplug I, communication through the shell traversing these parts and thevalve-chamber by passing around the valve proper when'the latter isunseated. The cap screws on the usual outer thread'of the shell and hasa finger e for entering the socket and depressing the deiiater to unseatthe valve proper. p u The valve proper shown consists of animperforatepiece of rubber or other packing materialf and an'inclosing holderg. They vdeiiater and valve proper are separate and independently-movableparts, the deflater being confined within the shell' by an enlarged endh, which cannot pass the shoulder cin the neck and which rests againstthe body f when pressed inwardly for unseating the valve. f

Referring now to Figs. l to 6, I will first dei scribe in detail thepreferred form of my present improvements. According toone feature ofimprovement Iconstruct the valve proper u' with longitudinal externalAguiding ribs (i, which project from lits sides aud make a suit-u able twith the cylindrical walls of the cham-y ber D and leave spaces betweenthem lfor the free passage of air. These ribs are prefer-v ably formedin the Wall of the casing g, which is shown as a staniped-lnetal cuphaving portions ot' its sidewalls bent orcreased outwardly to formprojections constituting the` I ribs According to another feature ofirnprovement I provide a valve proper of the imperforate type withguiding provisions at itsinner or egress side-'that is, the side re?mote from the seat-these provisions consti tuting'reoiprocal facescarried bythe valve proper and the shell at the egress side and insliding engagement sufficient to preserve the position of the valvewithin the chamber, While not interfering with its proper'movement.Preferably the valve is provided with an inwardly-projecting rigid tailJ and the loo plug with a smooth guiding-socket K, .receiving this tail,remote from the valve proper. The tail J may be suitably constructed andconnected to the valve proper. I prefer to form it of a cylindrical rod,the upper end of which is riveted to the casingg by being passed througha hole j in the bottom thereof and swaged to overhang this hole withinthe casing below the plugfand to provide afree passage-way between therod and the socket by cutting away a part 7c of the rod at itslowerend-for example, by squaring it there, as shown. The guiding-wallsK are preferably formed in the plug I, these walls heilig in theconstruction shown also the walls of part of the duct (Z. The rodextends from the valve proper to the plug and sufficiently within thelatter to give the requisite guiding engagement. I preferably providealso an intermediate guide for the tail of the valve propel'. This isshown as a tubular part L, fixed within the chamber Gand located thereinby a shoulder l. This part bridges the chamber and has cut-away sides m,permitting free passage-way through the chamber, a cylindrical bore n.,fitting the tail J, and a cross-cut o, exposing the tail at its side.This part in the construct-ion shown surrounds at its top thecylindrical part of the tail and at its bottom the cut-away part thereofand suffices as a bridge for carrying the spring G. The valve-chamber isshown as slightly enlarged to receive the part L and provide theshoulder l therefor.

In use the valve proper will be properly guided in the constructionshown both near its seating end, at the extremity of its tail, andintermediate of these points. This permits a sufficiently free fit togive great sensitiveness of action and still avoids .any danger ofdisadvantage from looseness. All liability of the valve tobecomeimproperlyseated or to catch or cant is obviated. The side ribswill remove any danger of the spring jamming between the chamber andcasing.

' With imperforate valves these dangers have been material, and guidingother than through the length of the valve proper itself has beendifficult, if notimpossible, of attainment.

In operation the improved valve will be used as former valves of thisclass have been, the separate defiating-pin being em` ployed or not, asdesired. The valve proper will unseat to permit inflow and seat toprevent outfiow, the air passing in the space or spaces between theWalls of the casing and shell.

It will be understood that my invention provides improvements which canbe readily and advantageously availed of in whole or in part and that Ido not limit myself to the particular details of construction andcombination set forth as constituting the preferred form of theinvention, but that the invention can be employed in whole or in-part,according to such modifications or combinations of its several featuresof improvement as circumstances or thejudgment of those skilled in theart may dictate, without departing from the spirit of the-invention.

In the construction shown in Fig. 7 the intermediate guide is omitted,the tail J being here flattened at its end 7c and guided by the socket Kin the plug I. The shell B lxasits valve-chamber of uniform diameter,and the valve proper, F', consists of a thin fiat imperforate disk ofrubber f' instead of the elongated cylindrical plug before described,which disk is fixed within the inturned edge of a shallow metal casingor cup g', to which the tail is fixed. No guiding-ribs are shown on thiscup.

In the modification shown in Figs. 8 antlU the shell B is of the sameconstruction as that shownin Fig. 7, and the valve propel', F, consistsof a short imperforate plug f and along metal casing g, theguiding-socket K" being in this instance formed in the valve proper orthe casing thereof, While the guid ing-tail J is in this instance formedon or earried by the plug I. The casing g has the ribs t', beforedescribed, and extends a considerable dist-ance below the plug, having alarge holejin its lower end. The guiding-tail Jis shown asafingerprojecting from the plug I nearly to the valve and entering thehole in the casing, so that the end of the `finger projects into thesocket K". The casing is thus guided in its vertical movements by thefinger. The end of the finger strikes the plug f and arrests inwardmovement of the valve proper. The outlet-duct through the plug is herelettered d. A spring Gis shown as surrounding the tail J" between theplug and valve proper.

l. The improved valve proper for tire and other valves, comprising abody of packing material, and a casing inclosing said body and havingexternal ribs for engaging the walls of a valve-chamber. y t

2. The improved valve proper for tire and other valves, consisting of abody of packing material, and a sheet-metal cup inclosing and holdingsaid material, and having outwardlybent projections in its side walls,substantially as and for the purpose set forth.

3. The improved valve proper for tire and other valves comprising acarrier having a hole through it,a guidingtail passing into said hole atone end of said carrier, and a packing material held at the other endthereof.

4. The improved valve properf'or tire and other valves comprising acarrier having a hole through it, a guiding-tail passing into and fixedin said hole at one end of said oarrier, and a packing material held atthe other end thereof.

5. The improved valve proper for tire and other valves comprising acarrier having a hole through it, and 'passage-Ways for a fluid,

IOO

IIO

a guiding-tail passingintosaid hole at one end of said carrier, and apacking material held at the other end thereof.

6. In tire and other valves, a valve-shell havinga valve-chamber, a seatat one end of said chamber and an egress-passage at the i other endthereof, in combination with a stemless valve proper in said chamber,clos-l ing with the pressure, having at the ingress side a face engagingsaid seat, said valveshell and valve proper having beyond the egressside of the latter reciprocal guidingfaces guiding the valve proper inits movements toward and from said seat, and a passageway between saidguiding-faces permitting outflow from said chamber.

7. In tire and other valves, a valve-shell having a chamber, a seat atone end of said chamber and an egress-passage at the other end thereof,in combination with a stemless valve proper in said chamber, closingwith the pressure and having a face at its ingress end engaging saidseat, said shell and valve proper having at theegress side of the latterthe one a guiding projection and the other a guiding-socket receivingsuch projection, and a passage-way through said guiding-socket foroutfiow from said chamber. v

8. In tire and other valves, a valve-shell having a valve-chamber andseat, in combination with a stemless valve proper in said chamberengaging the seat and having a projeeting guiding-tail, and aseparaterigid piece carried by said shell and having a socket receivingand guiding said tail. 9. In tire and other Valves, a shell havinganelongated valve-chamber and a seat, in com` binationwith a valve properin said chamber,

a guiding projection at the egress side of said l my name in thepresence of two subscribing witnesses.

GEORGE H. E. soHRADER.

v Witnesses: l

. GEORGE H. FRASER,

- RENE BRUINE'.

